Clamp



' March-27, 1945. w. G.YBRYANTV Q 2,372,543

0 LAMP Filed May 19, 1944 4 Sheets-Sheet 1 Inventor March 27, 1945. w BRYANT 2,372,548

CLAMP 4 Sheets-Sheet 2 Filed May 19, 1944 ln ventor March 27, 1945. w. e. BRYANT CLAMP 4 Sheets-Sheet 3 'Filed May 19. 1944 QB/yaw/i March 27, 1945- w. G. BRYANT CLAMP Filed May 19, 1944 4 Sheets-Sheet 4 I I Inuwtmneat-aw 6B By Patented'Mar. 27, 1945 UNITED STATES PATENT OFFICE 2,372,548 CLAMP William G. Bryant, Brunswick, Ga.

Application May 19, 1944, Serial No. 536,359

2 Claims.

This invention relates to new and useful improvements in clamps whereby materials of a heavy nature can be firmly grasped preparatory to being shifted or lifted from one position to another.

An important object of the present invention is to provide a clamp which will be self-operating to a firm clamped position as a result of the weight of the material lifted thereby.

Still another important object of the invention is to provide a clamp of the character stated which will be positive acting and substantially fool-proof at all times.

A further object of the invention is to provide a clamp especially adapted for use in shipbuilding whereby portions of a ship can be easily brought and held together while being welded, thus dispensing with the present practice of welding on pad eyes and subsequently burning the same off, after they have served their purpose.

Other objects and advantages of the invention will becomeapparent to the reader of the following description.

In the drawings: 7

Figure'l is a front elevatio-nal View of the clamp.

Figure 2 is a side elevational view.

Figure 3 is a horizontal sectional view taken on the line 3-3 of. Figure 1.

Figure 4 is a fragmentary vertical sectional View taken substantially on the line 4-4 of Figure 3.

Figure 5 is a fragmentary detailed sectional view taken substantially on the line 55 of Figure 3.

Figure 6 is a front elevational view of a slightly modified form of clamp.

Figure '7 is a side elevational view of the clamp shown in Figure 6.

Referring to the drawings wherein like numerals designate like parts, it can be seen in Figure 3, that numeral 5 denotes a substantially flat horizontally disposed block having a substantially rectangular-shaped cut-out 6 for receiving the lower cam-shaped head 1 of an arm 8 which at its upper end has a barrel formation 9 through which a pin in is disposed, this pin being secured at its end, by suitable means H, within the upper head portion I 2 of side links l3, l3, these side links extending downwardly and terminating within openings [4 in the slot 5 at opposite sides of the cut-out portion 6.

A fixed shaft I5 is disposed transversely through the block 5 and through the lower portions of the link members l3, l3 and the camshaped lower portion 1 of the arm 8.

A line attaching clevis H3 is swingable on the pin It (see Figure 1).

The block 5 is provided with an oblique extension H and a backwardly disposed jaw 18 having a roughened or corrugated jaw face l9 opposed to the cam head portion 1 of the arm 8, as clearly shown in Figures 3 and 4,

At the opposite side of the block 5 from the jaw I8 is a reduced eye formation it and into this can be tied a lateral line (notshown) On the block 5 a dog 2i is swingably mounted and is engageable with teeth or ribs 22 on the upper portion of the cam head T, when the cam head is in clamped position with work which is held against the jaw face It.

Obviously, when work is positioned between the jaw face l9 and the cam head 1, and a lift is exerted on the clamp, as the arm 8 straightens out, the cam i will act against the work and firmly clamp the same against the jaw face IS.

A slightly modified form of the invention is shown in Figures 6 and 7 wherein a block 5a has an arm 8a, provided with a similar cam head la operating in a like manner against a jaw 18a. This form of clamp can be provided with a dog 2 la and may also have a lateral line eye 29a.

The upper end of the arm Ba, is likewise provided with a barrel receiving a bolt or pin lta and. a clevis IE0, is provided on this bolt or pin 10a.

The chief difference between this form of the invention and that depicted in Figures 1 to 5, inclusive, is that eye bolts 25, 25 are provided and disposed vertically through the block to, the upper eye ends of which are linked with the lower eye ends of link members 26, 25 which extend upwardly and have apertured heads 21 through which the bolt or pin 10a is disposed as in the manner shown in Figure 6.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

1. A clamp comprising a body, a cam operative on the body, said body being provided with a jaw formation extending to opposed position with respect to the cam, and line attaching means for the cam, said line attaching means consisting of an arm projecting from the cam means for the cam, said line attaching means consisting of an arm projecting from the cam and a line attaching clevis at the outer end of the arm and link members between the pin and the body, said link members each consisting of an elongated member having one end connected to the pin and its opposite end provided with an eye and an eye bolt disposed through the body and having its eye linked with the eye of the 10 corresponding elongated member.

WILLIAM G. BRYANT. 

